MC33063AVP Plastic DIP
Order this document by MC34063A/D
C0077C0067C0051C0052C0048C0054C0051C0065
C0077C0067C0051C0051C0048C0054C0051C0065
DC–to–DC CONVERTER
CONTROL CIRCUITS
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
P, P1 SUFFIX
PLASTIC PACKAGE
CASE 626
PIN CONNECTIONS
SEMICONDUCTOR
TECHNICAL DATA
8
1
1
8
1
Switch
Collector
Switch
Emitter
Timing
Capacitor
Gnd
Driver
Collector
I
pk
Sense
V
CC
Comparator
Inverting
Input
(Top View)
Device
Operating
Temperature Range Package
ORDERING INFORMATION
MC33063AD
MC33063AP1
T
A
= – 40° to +85°C
SO–8
Plastic DIP
MC33063AVD
T
A
= –40° to +125°C
SO–8
2
3
45
6
7
8
MC34063AD SO–8
MC34063AP1
T
A
= 0° to +70°C
Plastic DIP
1
MOTOROLA ANALOG IC DEVICE DATA
C0068C0067C0045C0116C0111C0045C0068C0067 C0067C0111C0110C0118C0101C0114C0116C0101C0114
C0067C0111C0110C0116C0114C0111C0108 C0067C0105C0114C0099C0117C0105C0116C0115
The MC34063A Series is a monolithic control circuit containing the
primary functions required for DC–to–DC converters. These devices consist
of an internal temperature compensated reference, comparator, controlled
duty cycle oscillator with an active current limit circuit, driver and high current
output switch. This series was specifically designed to be incorporated in
Step–Down and Step–Up and Voltage–Inverting applications with a
minimum number of external components. Refer to Application Notes
AN920A/D and AN954/D for additional design information.
• Operation from 3.0 V to 40 V Input
• Low Standby Current
• Current Limiting
• Output Switch Current to 1.5 A
• Output Voltage Adjustable
• Frequency Operation to 100 kHz
• Precision 2% Reference
Representative Schematic Diagram
SQ
R
Q2
Q1
100
I
pk
Oscillator
C
T
Comparator
+
–
1.25 V
Reference
Regulator
1
2
3
45
6
7
8
Drive
Collector
I
pk
Sense
V
CC
Comparator
Inverting
Input
Switch
Collector
Switch
Emitter
Timing
Capacitor
Gnd
(Bottom View)
This device contains 51 active transistors.
 Motorola, Inc. 1996 Rev 5